Product Introduction
The RCP045-20SPP is a compact, high-reliability water treatment unit engineered with premium SPP (Spun Polypropylene) filter media, specifically designed for small-to-medium flow commercial and light industrial water purification, pre-treatment and process water preparation scenarios. This system integrates a precision filtration structure with a space-saving, rugged modular design, optimized to efficiently remove suspended solids, colloidal particles, organic micro-contaminants and partial dissolved salts from tap water, surface water and low-concentration groundwater. Equipped with built-in pressure stabilization and anti-clogging components, it features a quick-release filter chamber that enables tool-free installation, routine maintenance and backwashing—no specialized technical skills are required for daily operation. Suitable for standalone use or as a key pre-treatment module for small-scale reverse osmosis (RO), ultrafiltration (UF) and UV disinfection systems, the RCP045-20SPP delivers consistent, high-quality treated water with low energy consumption and minimal operational costs, making it an ideal filtration solution for compact workspaces and small-to-medium flow water treatment demands in commercial and light industrial settings.
Filtration Precision
The RCP045-20SPP achieves a 0.15-micron high-precision filtration rating, which can effectively capture ultra-fine suspended particles, bacteria, algae, colloidal substances and micro-scale insoluble impurities that easily cause pipeline clogging, equipment scaling and water quality deterioration. This level of filtration precision ensures the treated water meets stringent industry clarity and purity standards for commercial and light industrial applications, and strikes an optimal balance between fine contaminant removal and stable water throughput for small-to-medium flow processing needs.
Flux
Under standard operating conditions (25°C inlet water temperature, 30 psi inlet pressure, feed water turbidity <6 NTU and pH value 5.5-8.5), the RCP045-20SPP features a nominal flux rate of 20 gallons per minute (GPM). This flux is precisely calibrated for small-to-medium flow water treatment scenarios, ensuring efficient water output without compromising filtration quality. Thanks to the high porosity and three-dimensional interwoven fiber structure of SPP filter media, the flux remains stable even with minor fluctuations in feed water temperature, turbidity and pressure, eliminating the need for frequent flow adjustment and ensuring continuous, consistent water supply for daily operation.
Salt Rejection Rate
Equipped with a high-performance selective SPP composite filtration membrane, the RCP045-20SPP achieves a 96% salt rejection rate for monovalent salts (e.g., sodium chloride, potassium chloride) and a 98% salt rejection rate for divalent salts (e.g., calcium carbonate, magnesium sulfate, calcium sulfate). This excellent selective salt rejection performance effectively reduces the total dissolved solids (TDS) content in treated water, significantly improving water purity and making it suitable for light industrial process water, commercial food-grade drinking water and small-scale boiler feed water pre-treatment applications.
Pressure Drop
The pressure drop across the RCP045-20SPP system is strictly controlled at a low range of 2.5–3.5 psi under nominal 20 GPM flux conditions. This minimal pressure loss is attributed to the high permeability and large specific surface area of spun polypropylene filter media, as well as the streamlined internal flow path design that minimizes water flow resistance and eddy current generation. A low pressure drop not only drastically reduces the energy consumption of water pumping equipment and lowers operational costs, but also prevents excessive pressure buildup inside the system, thereby extending the service life of membrane elements, seal components and other key structural parts.
Molecular Weight Cutoff (MWCO)
The molecular weight cutoff of the RCP045-20SPP is precisely rated at 12,000 Daltons. This means the system can effectively retain and separate organic macromolecules with a molecular weight of 12,000 Daltons or higher, such as humic acids, industrial dye residues, protein contaminants and polysaccharides, while allowing water molecules, small inorganic ions and low-molecular-weight organic substances to pass through unimpeded. This accurate selective separation capability makes the system an ideal choice for small-scale industrial wastewater treatment and pre-treatment for small RO/UF systems, effectively preventing membrane fouling and extending the service life of downstream water treatment components.
Membrane Thickness
The filtration membrane of the RCP045-20SPP has a total optimized thickness of 160 microns, consisting of a 125-micron porous SPP support layer and a 35-micron dense selective filtration layer. The thick, high-strength spun polypropylene support layer features a three-dimensional interwoven fiber structure, providing excellent mechanical rigidity, pressure resistance and structural stability, which can effectively prevent membrane deformation, rupture or damage under medium operating pressure and continuous small-to-medium flow conditions. The dense and uniformly structured selective layer is the core component that ensures the system’s high filtration precision and efficient salt rejection performance, and it maintains high water permeability while blocking contaminants, which is the key to realizing the stable 20 GPM flux operation of the system.
Replacement Cycle
The recommended replacement cycle for the SPP filter elements of the RCP045-20SPP is 7–9 months under normal operating conditions (feed water turbidity <5 NTU, regular backwashing every 48 hours, and standard feed water quality maintenance). For feed water with high turbidity (>12 NTU) or high organic contaminant content, the replacement cycle can be appropriately shortened to 4–6 months to maintain the system’s optimal filtration efficiency, stable flux and high-quality water output. Regular and timely replacement of filter elements is critical to prevent contaminant accumulation, membrane clogging, abnormal pressure drop rise and a decline in treated water quality, and it also helps to avoid irreversible damage to the system caused by excessive fouling.
Features
- Compact & Space-Saving Design: Rugged modular construction with a small footprint, perfect for installation in compact commercial shops, light industrial workshops and small water treatment stations with limited layout space.
- Premium SPP Filter Media: Spun polypropylene media with three-dimensional interwoven structure, high porosity, large dirt-holding capacity and excellent chemical corrosion resistance, ensuring long-term stable filtration performance.
- Low Pressure Drop: 2.5–3.5 psi pressure loss under nominal flux minimizes pumping energy consumption, lowers operational costs and extends the service life of system components.
- High Precision Filtration & Salt Rejection: 0.15-micron filtration precision and 96–98% selective salt rejection rate ensure treated water meets strict commercial and light industrial quality standards.
- Tool-Free Maintenance: Quick-release filter chamber design enables effortless filter element replacement and backwashing, no specialized tools or professional technical skills required for daily operation.
- Stable Continuous Operation: Built-in pressure stabilization and flow regulation components maintain consistent flux and filtration efficiency despite minor fluctuations in feed water parameters (temperature, turbidity, pressure).
- Wide Water Adaptability: Suitable for various feed water types including tap water, surface water, groundwater and low-concentration light industrial wastewater, with strong adaptability to different water quality conditions.
- Flexible Integration: Can be seamlessly integrated with small-scale RO, UF, UV disinfection and chlorination systems to form a customized multi-stage water purification line for specific application needs.
- Cost-Effective Operation: Extended filter element replacement cycle, low energy consumption and minimal maintenance requirements significantly reduce the total cost of ownership (TCO) for users.
- Durable Construction: The whole machine adopts corrosion-resistant materials and a sealed structural design, with strong anti-interference ability and long service life in harsh working environments.
Application Fields
- Light Industrial Manufacturing: Serves as pre-treatment equipment for process water and rinsing water in small-scale electronics, hardware processing, plastic manufacturing and printing workshops, preventing equipment scaling and improving product processing quality.
- Commercial Catering & Hospitality: Applied in hotels, restaurants, cafes and catering centers for drinking water, food processing and dishwashing water purification, ensuring compliance with food safety and hygiene standards and improving water taste.
- Small-Scale Commercial Water Supply: Used in office buildings, shopping malls, gyms and convenience stores for central drinking water purification, providing safe and high-quality water for daily commercial use and customer needs.
- Small-Scale Boiler Feed Water Pre-Treatment: Ideal for pre-treatment of boiler feed water in small factories, hotels and heating stations, reducing TDS content and preventing boiler scaling and corrosion to extend boiler service life.
- Laboratory & Research Institutions: Provides high-purity process water for small-scale chemical laboratories, biological research centers and testing institutions, meeting the precision water quality requirements of experimental operations and sample preparation.
- Small-Scale Wastewater Treatment & Reuse: Treats low-concentration light industrial wastewater from small workshops and commercial facilities, reducing pollutant discharge and enabling water reuse for non-potable purposes such as ground cleaning and green irrigation.
- Small-Scale RO/UF System Pre-Treatment: Acts as a critical pre-treatment module for small-scale reverse osmosis and ultrafiltration systems in commercial and light industrial settings, preventing membrane fouling and extending the service life of core membrane components.
Conclusion
The RCP045-20SPP water treatment system is a compact, high-performance and cost-effective filtration solution for small-to-medium flow commercial and light industrial water purification, pre-treatment and process water preparation needs, distinguished by its premium spun polypropylene filter media, high-precision filtration performance and space-saving design. Its 0.15-micron filtration precision, 96–98% selective salt rejection rate and 12,000 Daltons MWCO enable it to adapt to a wide range of small-to-medium flow water treatment scenarios, from light industrial process water preparation and commercial drinking water purification to small-scale wastewater treatment and RO/UF system pre-treatment. The system’s low pressure drop design significantly reduces energy consumption and operational costs, the tool-free maintenance feature simplifies daily operation and reduces labor costs, and the extended filter element replacement cycle optimizes the total cost of ownership for users. With stable continuous operation performance, wide water adaptability and flexible integration capabilities, the RCP045-20SPP is perfectly suited for compact workspace and small-to-medium flow water treatment scenarios, delivering consistent, high-quality treated water while meeting the efficiency, simplicity and cost-effectiveness requirements of commercial and light industrial users, and it is a valuable water treatment asset for small-scale water purification projects.
Related Products
- RCP045-30SPP: An upgraded medium-flow version of the RCP045-20SPP with a 30 GPM nominal flux rate, designed for larger small-scale commercial and light industrial water treatment needs.
- RCP045-20SPP-UV: An integrated water treatment system combining RCP045-20SPP filtration with high-efficiency UV disinfection technology, ideal for commercial drinking water and food-grade water purification in catering and hospitality industries.
- RCP045-20RO-SPP: A compact reverse osmosis system paired with the RCP045-20SPP pre-treatment module, delivering ultra-pure water for small-scale laboratories, light industrial processing and high-end commercial drinking water needs.
- SPP-045-20 Replacement Filter Element: Original customized SPP filter element for the RCP045-20SPP system, perfectly matching the system’s structural and performance requirements to ensure consistent high-precision and high-flux filtration performance after replacement.
- RCP045-20SPP-BW: An upgraded version of the RCP045-20SPP with an automatic backwashing system, realizing unmanned automatic maintenance and more suitable for 24/7 continuous commercial operation in hotels and shopping malls.
- RCP045-20EPP: A sister model of the RCP045-20SPP with EPP (Enhanced Polypropylene) filter media, offering stronger pressure resistance and chemical stability for light industrial water treatment with higher medium pressure.
- RCP-Smart-SPP-01: A mini intelligent monitoring system for RCP compact SPP series water treatment units, supporting real-time tracking of pressure, flux and TDS levels with fault alarm and data logging functions.
